s.Spec.IPFamilies = nil
			},
			numErrs: 0,
		}, {
			name: "valid, service with valid ipFamilies (v4)",
			tweakSvc: func(s *core.Service) {
				s.Spec.IPFamilies = []core.IPFamily{core.IPv4Protocol}
			},
			numErrs: 0,
		}, {
			name: "valid, service with valid ipFamilies (v6)",
			tweakSvc: func(s *core.Service) {
				s.Spec.IPFamilies = []core.IPFamily{core.IPv6Protocol}